Prof. Wenbin Guo Profile

Prof. Wenbin Guo

at Jilin Univ

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Proceedings Article | 21 August 2014 Paper

The role of NaYF4 nanoparticles in inverted polymer solar cells

Wenbin Guo, Huimin Jiang, Chunyu Liu, Yeyuan He, Xinyuan Zhang

Proceedings Volume 9233, 923328 (2014) https://doi.org/10.1117/12.2068395

KEYWORDS: Absorption, Nanoparticles, Solar cells, Doping, Polymers, Light scattering, Scattering, Visible radiation, Silver, Magnesium

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NaYF₄ nanoparticles are doped into PCDTBT:PCBM blend as a dual function additive to improve light absorption of inverted polymer solar cells. The dependence of device performance on NaYF₄ in the blend film is investigated. The results show that the short-circuit current density is apparently enhanced by doping NaYF₄ into the active layer while maintaining the open-circuit voltage and fill factor, leading to an increase in power conversion efficiency. NaYF₄ maybe play two kinds of role for light absorption enhancement. Up-conversion (UC) emission from Y³⁺ is observed. The scattering effect of NaYF₄ nanoparticles (NPs) enhances the light absorption in visible region. The performance of polymer solar cell doped with NaYF₄ is compared with that of undoped. The concept of integrating nanoparticles into active layer suggests a promising and practical pathway for improving absorption of polymer solar cells.

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